Mitsubishi GX Configurator-PT, Руководство пользователя

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MELSEC-Q
9 POSITIONING CONTROL
9.2.4 Current value changing
Current value changing performs control to change "Md. 1 Current feed value" to any
address.
Operation chart
The following chart shows the operation timing for a current value changing. The
"Md. 1 Current feed value" is changed to the value set in " Da. 6 Positioning
address/movement amount" when the positioning start signal turns ON.
Md.1 Current feed value 5000 10000
Positioning start signal
[Y8 to YF]
OFF
ON
Positioning complete signal
[X18 to X1F]
OFF
Current feed value changes to the
positioning address designated by the
positioning data of the current value changing.
The above chart shows an example
when the positioning address is "10000".
Restrictions
(1) If "Continuous path control" is set in " Da. 1 Operation pattern", the "New
current change not possible" error (error code: 502) occurs. ("Continuous path
control" cannot be set for current value changing.)
(2) "Current value changing" cannot be set in " Da. 2 Control method" of the
positioning data when "continuous path control" has been set in " Da. 1
Operation pattern" of the immediately prior positioning data. (For example, if the
operation pattern of positioning data No. 1 is "continuous path control", "current
value changing" cannot be set in positioning data No. 2.)
If such setting has been made, the "New current change not possible" error
(error code: 502) occurs, resulting in a deceleration stop.
(3) If the value set in " Da. 6 Positioning address/movement amount" (New current
value) is outside the setting range of the software stroke limit upper and lower
limit values ( Pr. 1 , Pr. 2 ), the "Software stroke limit +, -" error (error code: 103,
104) occurs and current value changing cannot be made.
Positioning data setting examples
The following table shows the setting examples when " current value changing" is
set in the positioning data No. 1 of axis 1.
Setting item Setting example Setting details
Da. 1 Operation pattern
Positioning
termination
Set "Positioning termination" assuming that the next positioning data
will be executed. ("Continuous path control" cannot be set by current
value change.)
Da. 2 Control method
Current value
changing
Set the current value changing.
Da. 3 ACC/DEC time
– Setting not required (Setting value is ignored.)
Da. 4 DEC/STOP time – Setting not required (Setting value is ignored.)
Da. 5 Command speed – Setting not required (Setting value is ignored.)
Da. 6
Positioning address/
movement amount
10000pulse Set the address to which address change is desired.
A
x
is 1 positioning d
a
ta N
o
. 1
Da. 7 Dwell time 500ms
Set the time from completion of current value changing until the
positioning complete signal is output.
Refer to "Section 4.5 List of positioning data" for the setting details.